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Shear testing of simulated lunar soil in ultrahigh vacuum
Reduction of dust and energy during coal cutting using point-attack bitswith an analysis of rotary cutting and development of a new cutting concept
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Published Year
1970-1979 (2) *
Subject
Coal mines and mining--Dust control (1)
Coal-mining machinery (1)
Lunar geology (1)
Lunar petrology (1)
Shear strength of soils--Testing (1)
Author
Roepke, Wallace W. (2) *
Johnson, Bradley V. (1)
Lindroth, David P., (1)
Myren, Theodore A., (1)
Strebig, Kelly C. (1)